North of Alamosa, Colorado, along the east side of the San Luis Valley, is this large solar powerplant right along the highway. I could get decent pictures from outside the fence (They didn't encourage visitors!).

This facility was put in service in 2007 by SunEdison and generates almost 7 MW of AC (over 8 MW of DC but the inverters use a lot of power). The arrays are all facing the morning sun so I assume these are tracking cells and each of the solar cell units rotate to follow the sun.

SunEd lists this as owned by Alamosa so presumably all this power goes to the city. They have a smaller one in Lakewood, CO for the GSA facility there that SunEd owns and sells the power to the US Government. Most of SunEd's plants are in California.

But the SLV is a perfect location as it is sunny most of the time, over 7500 feet (blocking less sunlight), and little air pollution with lots of flat, open land. There are other projects planned by other companies but this is the only large scale facility in service in the SLV.

I had to take the picture in sections the line of cells is so long (about 1/4 mile); the big things in the back are arrays of a different design.